<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
           margin: 50px; 
           font-family: Verdana, Geneva, Tahoma, sans-serif;
        }
        .div1{
            height: 200px;
            width: 500px;
            color:rgb(233, 239, 240);
            background-color: rgb(10, 247, 235);
        }

        .div1:hover{
            height: 200px;
            width: 500px;
            color:red;
            background-color: rgb(105, 105, 230);
        }

        .div1{
            height: 200px;
            width: 500px;
            color:red;
            background-color: rgb(82, 82, 88);
        }
        #div2{
            height: 200px;
            width: 800px;
            color: aqua;
            background-color: blue;
        }
        a:link{
            background-color: gold;
        }
        a:active{
            background-color: rgb(98, 95, 73);
        }
        a:visited{
            background-color: rgb(194, 13, 240);
        }
        a:active{
            background-color: rgb(6, 248, 18);
        }
        a:hover{
            background-color: rgb(10, 247, 235);
        }
        .adders:focus{
            background-color: hotpink;
        }
        div{
          width: 300px;
          height:200px;
          background-color: darkorange;  
        }
        div:hover{
          width: 500px;
          height:300px;
          background-color: rgba(255, 140, 0, 0.178);  
        }
    </style>
</head>
<body>
    <DIV class="div1">
        我叫库尔班
    </DIV>

    <DIV id="div2">
        我叫库尔班
    </DIV>

    <DIV>
        我叫库尔班
    </DIV>
        <a href="http://www.taobao.com">淘宝网</a>
   <input type="text" class="adders" placeholder="请输入地址"/>
    </DIV>
</body>
</html> 